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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Des Moines IA
337 AM CDT Wed Jul 17 2019

IAZ044>050-057>062-070>075-081>086-092>097-181100-
Crawford-Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-
Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-
Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-
Decatur-Wayne-Appanoose-Davis-
337 AM CDT Wed Jul 17 2019

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Isolated to scattered thunderstorms will be possible today into
tonight. There is a slight chance of severe storms with large hail
and damaging winds the main concern with best threat area north
of Interstate 80. Locally heavy rain is also possible.

An Excessive Heat Warning is in effect for the area through
tonight. Please refer to the National Weather Service website at
weather.gov/desmoines for further details.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Isolated storm chances return Saturday night into Sunday. The
severe weather threat appears low at this time.

An Excessive Heat Warning is in effect for the area Thursday
through Saturday. Please refer to the National Weather Service
website at weather.gov/desmoines for further details.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed today into tonight.

$$



Excessive Heat Warning

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
327 AM CDT Wed Jul 17 2019

...Sultry Conditions Today Through Saturday...

.High pressure will strengthen through the end of the week
resulting in hot temperatures and high humidity values. This will
lead to high heat index values through Saturday. Plus, little
relief from the heat is expected during the overnight hours with
lows remaining in the 70s to around 80. Some relief is expected
by later in the weekend as a cold front moves into Iowa.

IAZ059>062-070>075-081>086-092>097-171700-
/O.CON.KDMX.EH.W.0001.190717T1800Z-190721T0000Z/
Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-
Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-
Decatur-Wayne-Appanoose-Davis-
Including the cities of Perry, Waukee, Adel, Des Moines, Newton,
Grinnell, Atlantic, Greenfield, Stuart, Adair, Fontanelle,
Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella,
Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia,
Ottumwa, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon,
Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield
327 AM CDT Wed Jul 17 2019

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 7 PM CDT SATURDAY...

* TEMPERATURE...The combination of temperatures in the 90s and
  dewpoints in the 70s will produce daytime heat index values of
  100 to 110 degrees. Overnight lows will remain warm in the
  middle 70s to near 80.

* IMPACTS...Heat-related illnesses may occur due to the
  prolonged period of heat and humidity.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a DANGEROUS
SITUATION in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the sun, and
check up on relatives and neighbors.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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